Earthquake with magnitude of Md 2.4 on date 12-08-2019 and time 07:52:16 (UTC) in region Costa Sarda nord orientale (Olbia)

A magnitude Md 2.4 earthquake occured in region: Costa Sarda nord orientale (Olbia), on

  • 12-08-2019 07:52:16 (UTC)
  • 12-08-2019 09:52:16 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 41.1980, 9.4800 at 4 km depth.

The earthquake was located by: Sala Sismica INGV-Roma.

Search earthquakes: Any within 30 km radius

The values of hypocentral coordinates and magnitude may be revised at a later time as more information becomes available.

Municipalities within 20 km from the epicenter

Distances are determinated based on the geographic coordintes of the (Istat).
Municipality Region Dist Inh Cum Inh
La Maddalena OT 6 11332 11332
Palau OT 8 4214 15546
Arzachena OT 15 13562 29108

Municipalities with at least 50000 inhabitants

An earthquake occurred to
31 Km N of Olbia (59368 inhabitants)
93 Km NE of Sassari (127525 inhabitants)
Recent and historical seismicity
Seismic hazard
Shakemap
Felt maps
Locations history
Type Magnitude Date and Time (UTC) Latitude Longitude Depth (km) Published time (UTC) Author Location ID
Reviewed
Rev100
Md 2.4 2019-08-12
07:52:16
41.198 9.4803 4 2019-09-23
09:28:18
Sala Sismica INGV-Roma 72689321
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2019-08-12 07:52:16 ± 0.42
Latitude 41.1980 ± 0.0072
Longitude 9.4803 ± 0.0251
Depth (km) 4 ± 2 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 72689321

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 2053
Semi-minor axis of confidence ellipse (meter) 628
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 266
Circular confidence region, given by single value of horizontal uncertainty (meter) 2050.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 183
Number of associated phases, regardless of their use for origin computation 9
Number of defining phases 9
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.26
Epicentral distance of station closest to the epicenter (degree) 0.24192
Epicentral distance of station farthest from the epicenter (degree) 1.70242
Number of stations at which the event was observed 5
Number of stations from which data was used for origin computation 5
Magnitude information

Md:2.4

Field Value
Value 2.4
Uncertainty 0.2
Num. used stations 4
Type of magnitude Md
Reference to an origin 72689321
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2019-09-23 09:28:18
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
MN.VSL.HHE. 2019-08-12T07:53:10.59 0.6 undecidable manual S 183 188.9664 38 0.1 33
MN.VSL.HHE. 2019-08-12T07:52:47.30 0.3 undecidable manual P 183 188.9664 38 -0.31 47
IV.DGI.HHE. 2019-08-12T07:52:46.94 0.6 undecidable manual S 174 98.2239 50 0.35 42
FR.SMPL.HHE.00 2019-08-12T07:52:46.99 0.6 undecidable manual S 351 100.7214 50 -0.27 42
FR.AJAC.HHE.00 2019-08-12T07:52:35.05 1.0 undecidable manual P 324 100.5216 50 0.88 17
FR.SMPL.HHE.00 2019-08-12T07:52:34.30 0.3 undecidable manual P 351 100.7214 50 0.1 66
IV.DGI.HHE. 2019-08-12T07:52:33.61 0.1 undecidable manual P 174 98.2239 50 -0.2 87
IV.AGLI.HHE. 2019-08-12T07:52:25.54 0.6 undecidable manual S 253 26.8509 98 -0.23 49
IV.AGLI.HHE. 2019-08-12T07:52:21.94 0.1 positive manual P 253 26.8509 98 0.15 100
TDMT - Time Domain Moment Tensor
Fault Plane solutions in the area
Download
Type Description Link
QuakeML - small Event, Origin, FocalMechanism Download
QuakeML - full Event, Origin, FocalMechanism, Amplitude, Arrival, Pick, Station Magnitude Download